[character]
Elements in file to load.
Default is all.
simplify
[logical(1)]
If TRUE, a list is only returned if parts and the file contain both more
than 1 element, otherwise the element is directly returned.
Default is TRUE.
envir
[environment(1)]
Assign objects to this environment.
Default is not to assign.
impute
[ANY]
If file does not exists, return impute instead.
Default is missing which will result in an exception if file is not found.